FOOD CHEMISTRY
CARBOHYDRATES PROTEINS AND LIPIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the followings is the reagent to test starch in foods?
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Benedict’s
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Biuret
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Tolluen’s
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Iodine
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Explanation:
Detailed explanation-1: -A chemical test for starch is to add iodine solution (red) and see if it turns blue/black in colour. It is possible to distinguish starch from other carbohydrates using this iodine solution test. For example, if iodine is added to an peeled potato then it will turn black.
Detailed explanation-2: -In the presence of starch, iodine changes its color from brown to blue-black or purple. So, iodine can be used to test the presence of starch.
There is 1 question to complete.